strategy-proofness

Strategy-proofness means that when participating in a decision-making process or choosing an option, individuals are best off by honestly reporting their true preferences or information. No one can gain an advantage by trying to manipulate or misrepresent their preferences—doing so won’t improve their outcome. This property encourages honesty, leading to fairer and more reliable decisions. Essentially, a strategy-proof system aligns participants’ incentives with truthful behavior, ensuring the process works well even if everyone acts strategically.